US 12,290,692 B2
Ventricular far-field sensing to guide atrial leadless pacemaker and beyond
Xiaoyi Min, Santa Rosa Valley, CA (US); Weiqun Yang, Cupertino, CA (US); Benjamin T. Persson, Saratoga, CA (US); Nima Badie, Berkeley, CA (US); Kyungmoo Ryu, Palmdale, CA (US); and Gabriel Mouchawar, Valencia, CA (US)
Assigned to Pacesetter, Inc., Sylmar, CA (US)
Filed by Pacesetter, Inc., Sylmar, CA (US)
Filed on Feb. 13, 2024, as Appl. No. 18/440,703.
Application 18/440,703 is a division of application No. 17/321,014, filed on May 14, 2021, granted, now 11,931,590.
Claims priority of provisional application 63/048,256, filed on Jul. 6, 2020.
Claims priority of provisional application 63/033,185, filed on Jun. 1, 2020.
Prior Publication US 2024/0181265 A1, Jun. 6, 2024
Int. Cl. A61N 1/37 (2006.01); A61N 1/02 (2006.01); A61N 1/365 (2006.01); A61N 1/368 (2006.01); A61N 1/372 (2006.01); A61N 1/375 (2006.01); A61N 1/05 (2006.01)
CPC A61N 1/37288 (2013.01) [A61N 1/025 (2013.01); A61N 1/36507 (2013.01); A61N 1/3688 (2013.01); A61N 1/3704 (2013.01); A61N 1/3706 (2013.01); A61N 1/3756 (2013.01); A61N 1/056 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An atrial leadless pacemaker (aLP) configured to be implanted in or on an atrial chamber of a patient's heart, the aLP comprising:
two or more electrodes;
a pulse generator electrically coupled or coupleable to at least two of the two or more electrodes;
at least one of a sensor or circuitry configured to sense a signal from which cardiac activity associated with a ventricular chamber of the patient's heart can be detected based on one or more features of the sensed signal;
at least one of a processor or controller configured to
control the pulse generator to selectively generate an atrial pacing pulse for delivery to the atrial chamber via at least two of the two or more electrodes;
specify a ventricular event monitor window;
monitor the sensed signal for a ventricular activation within the ventricular event monitor window; and
reset an atrial escape interval timer, in response to the ventricular activation being detected from the sensed signal within the ventricular event monitor window;
wherein the atrial escape interval timer is used to time delivery of the atrial pacing pulse to the atrial chamber if an intrinsic atrial activation is not detected within an atrial escape interval.